Well.... my experience of exactly one CD player is:
My Cd player is a Rotel RSD991, a very well specified and built thing, apart from the generic op-amp output stage. The DACS are PCM 63, current output types. So I disconnected the output stage, put in a simple resistor as the current to voltage converter (I/V) followed by my DIY valve pre-amp for gain. Sounded better, so it stayed that way for a few years.
Then I read here and and on DIYaudio of "Lightspeed" George's experience with the AD844 chip used stacked and without feedback (thanks George). Sounded interesting and was simple to implement so I gave it a go. Immediately a more dynamic sound with a larger soundstage, so it has stayed like this since
IMO it's all about the design and implementation, tubes or SS. And to do it well with tubes is not simple or cheap.